What exactly is osteoarthritis? Who is at risk for it? Learn all about osteoarthritis here.

Aging and obesity are common causes in osteoarthritis development, but they're not the only ones.

Can cracking knuckles lead to joint problems? Get the facts and the fiction on knuckle cracking.

Whatever your sports passion, along with health benefits comes a risk of injury that can lead to osteoarthritis later in life.

Swollen, creaky joints are a hallmark of osteoarthritis -- but they can also be mistaken for something else.

Patients who have osteoarthritis of the hip sometimes have problems walking. Diagnosis can be difficult at first.

Each foot has 28 bones and more than 30 joints. The following are the most common foot joints affected by osteoarthritis.

Knee joint pain and swelling causes range from noninflammatory arthritis such as osteoarthritis to inflammatory arthritis types.

Learn about the tools commonly used in diagnosing osteoarthritis.

Treatment for osteoarthritis comes in many forms -- from exercise to surgery. Learn more about your options here.

Getting a shot of corticosteroids directly into a sore joint can reduce pain and inflammation quickly and effectively.

Knee injections may be able to help reduce your osteoarthritis knee pain. Find out more.

Who can this surgery help, what are its benefits, and what are the risks?

Can what you eat affect osteoarthritis? Get the latest thinking on the subject.